English verb conjugation
MUST SHARK

Regular verb: shark - sharked - sharked

Affirmation

Simple form	V-ing form
I must shark you must shark he must shark we must shark you must shark they must shark	I must be sharking you must be sharking he must be sharking we must be sharking you must be sharking they must be sharking
Perfect	V-ing perfect
I must have sharked you must have sharked he must have sharked we must have sharked you must have sharked they must have sharked	I must have been sharking you must have been sharking he must have been sharking we must have been sharking you must have been sharking they must have been sharking

Negation

Simple form	V-ing form
I must not shark you must not shark he must not shark we must not shark you must not shark they must not shark	I must not be sharking you must not be sharking he must not be sharking we must not be sharking you must not be sharking they must not be sharking
Perfect	V-ing perfect
I must not have sharked you must not have sharked he must not have sharked we must not have sharked you must not have sharked they must not have sharked	I must not have been sharking you must not have been sharking he must not have been sharking we must not have been sharking you must not have been sharking they must not have been sharking

Interrogative form

Simple form	V-ing form
must I shark? must you shark? must he shark? must we shark? must you shark? must they shark?	must I be sharking? must you be sharking? must he be sharking? must we be sharking? must you be sharking? must they be sharking?
Perfect	V-ing perfect
must I have sharked? must you have sharked? must he have sharked? must we have sharked? must you have sharked? must they have sharked?	must I have been sharking? must you have been sharking? must he have been sharking? must we have been sharking? must you have been sharking? must they have been sharking?

Interro-negative form

Simple form	V-ing form
must I not shark? must you not shark? must he not shark? must we not shark? must you not shark? must they not shark?	must I not be sharking? must you not be sharking? must he not be sharking? must we not be sharking? must you not be sharking? must they not be sharking?
Perfect	V-ing perfect
must I not have sharked? must you not have sharked? must he not have sharked? must we not have sharked? must you not have sharked? must they not have sharked?	must I not have been sharking? must you not have been sharking? must he not have been sharking? must we not have been sharking? must you not have been sharking? must they not have been sharking?